Carbureter.



T. HAEGELE.

CARBURETEH.

A PPLrcATzoN mail JUNE la. |914.

aented Aug. 31, 1915.

i Win/66565 accompanying float chamba? colmacyef with. a Sassmlmjf bei when he sucon incrwsef; owing the ncrease mgm@ gustan..

suean area left, tha Velecty of. the ai? mwa past the ln order that, h@ m'enon may be mme clearly uudersmd refe-muse is; made t6' the rawng; showing th@ pyre- :erm construction of this. improved @mimflaming :shaw

a. through h@ The aifer comp ffmah mach f'hm the tube d :m41 :i Q fm'm mrfmv annar fuel Spas@ new the @W0 mms, Shia almuhn space d being rested mtwm'dy mb its upper emi, foy which purpose time outer aube d is apsred n?. its appare en@ nd h@ inner mbe @maggy-0n@ ingyshaped. 55 @rzl of Acmu-sf; ige. undevstool @ba instead Gf providing :1n annular ue passage e, :l plurality of Tewca passnges may be pmvded., The ue i5 supplied to the jat passage fz hmugh passages ijn. a, nui c Scriswed inw h@ ouml' @tube (i anni through hoes a1-n the lima tube if. The

inner tube f reuc' at its Appel' and and aver thev same sltted a hoof g having sus head s'ifziy fitted a ambie comen! com.

lnng mamma' m 'which @am be zased or m'emf by mechanism n. The comrong .membfzx m euries an zmtiauy member mi "which, when the controlling fuembr '112,

and of stile filial passage e and. fm'e the passage im' 151,1@ ail' between :fha je@ 130x221@ myd the, mme 91 T contmlng Hummer fm, "32d wh immuni news2; 1mi* ini@ "11 api-H passing@ fmin thv member ting the engine. the @mim me@ @my sh u non im f- @amber m and The A* mmmzf mi srmd in space'betwaen #he fusi 3e uet mfiics-:s ami the air @one e and throtles tu'ouggt this .space @o duit aighaugh nny u very simili spamsiaemn the con'ung mamber m and the cfm@ o, the a wi be induced past the 'fuel omini mfice a Suceut veluciy t6 insure un c'cmx mix me. Xi; Wil be, observed, howm'ers the:

controlling member m cannot cause this velocity to become too great because the a uxiliary men'iber ml is so situated relatively to the controlling member m that thespace around the nozzle is not reduced until the apex of the controlling member ml has reduced thc free passage above the nozzle to such an extent that the velocity about the nozzle cannot become excessive. if the controlling member m is further raised in order to increase the effective suction area, the ref cess m* thereof uncovers the openings L in the hood g, the openings being so disposed that they are entirely uncovered by the recess m2 when the controlling member 'nt has been raised so that the effective suction space between the controlling member iii and the air cone o is as large as the cross sectional area oi the air space at the nozzle outlet. On uncovering the openings/i in the hood gf. the fuel located between the tubes 7' and i' will be subjected to suction owing to the connection of the space inclosed by the hood g with the mixing chamber ot' the carburetor through the passages m, recess m: and openings lo.

In every carburetor, apart from the resist anc/es in the fuel passages variable with ilu: speed. the quantity ol` iuel escaping ironithe nozzle depends on the arca oi the outlet opening and on the dill'criui'o b'ciu'i-iii ihr pressure momentarily existing in ilu` rar buretr during the-` suction and the pressure under which the fuel in the nozzle stands. The iuel normally stands level wiib ihr outlet opening'ot' the nozzle i/ under aimouh plieric pressure, that is to say. at ihix commencement oi' the movement ol' the pisioo or suction period. llndcr ilu action ol' ibrair drawn in between the tube i/ aud iluair cone o, the incl escapes from ibo noz/lr and is entrained by thi` succeedingl air. l*'iinultaneously, on correspondingly adjusting ibo controlling member m. air is drau'n ou( el' ythe interior oi the liood'y/ by ibi` suoiiou in the interior ol thc hood so thai as ibo wha ity ot thc' air at the nozzle iurroasos. ilu` pressure on the escaping fuel wiiliiii ibo nozzle is reduced to sui-h an cxiini ibai ilic proportion otair io i'uel rcmaim` ruusiani. As the sui-.tion or pistou velocity ilrrri'ases the pressure in the interior oll the bood again rises owing io the air entering ihc tube i' trom below so that at the end oll ibo suction stroke the pressure wit-hin the hood is again normal.

By reason ol2 the suction in the hood thc quantity ot fuel entering the nozzli` from below through the passages in the nut c is considerably influenced so that even when the engine is running at thc highest pcrmissible speed, in spite ot' the rapidly increasing rcsistanccin the fuel outlet passage c, suiiicient fuel will always be supplied to the tuei passage e.

l.' claim:

l. carbureter for internal combustion engines comprising mixing chamber adapted to be connected, to the engine and to be supplied with air, a nozzle/in said chamber, a main fuel conduit in said nozzle open at one end to the interior of said chamber and adapted to be supplied with fuelat its other end. an auxiliary conduit communicating at one end with said main conduit and open at its other end to the atmosphere and means for establishing communication between the open end of said auxiliary conduit and said chamber.

L. -X carburetei.' for internai combustion engines comprising a mixing chamber adapted to be connected to the engine and to be supplied with air, a hollow nozzle in said chamber having a passage leading from its interior and opening into said chamber, at'iicl supply conduit connected to said nozzle, an air supply conduit open at its upper end io the interior oi' said nozzlel above said passage and means` tor establishing communication between the upper end of said air conduit'and chamber.

Il. A carbureter for internal combustion engines comprising a mixing chamber adapted to be connected to the engine and to be supplied with air, a vertical hollow tube in said chamber adapted to be supplied with 4 i'uel and baring a passage leading from its inierior and opening into said chamber, an air lube in said hollow tube open below to ibix aimospherc and opening at its upper end above .said liollo\',.tiil e. a space being left beloi-iii .said iiibcs. a perforated lloOtl OVei ilux upper oudl ol.` said tubes and a slidable'- \al\ litiod ou said bood.

l. .i carburetor Vor internal combustion enginosriiiiprbiiig a mixingchamberadaptf ed io lay rounoiiod io ille engine and to be .supplied uiib air. a nozzle in :raid chamber bai ing Eimer and outer,communicating passages io ubib i'ucl is adapted to vbe supy plird. .sain outer passage opening at itsilppor ond *into said chamber, a. perforated' hood into which the upper end of said inner. pa uge opens. -iu atmospheric connection lo Iwill li'uifi. :i iliiiillli iiYiilCzil \`2ll\'0 Slldtbl on said hood and haring passages thefreilu-ougb adapted io register with theyperl'oraiionl iu' .said bood 'and anannular up.

wardljr lapin-ing von'.l in lsaid mixing chamber around ihr upper und ol' said nozzle.

I. .i wirburiier l'or internal combustion engines comprising a mixingi'bambcr adaptoil to lio, roiiiii'itiil to fili* oilgll'if und t0 be supplied uub air. a i'uel jot nozzle in said chamber haring a Iucl oiillrt orifice, a double conical member sliiiable on lsaid nozA zlepan annular upwardly tapering cone in said. mixing chamber around tliouppcr end of said nozzle and a member depending from said couii-al membriy and adapted to fthroitle thespace-around said fuel outlet orifice.

6. A carbureter for internal combustion engines comprising a mixingr chamber adapted to be connected to the engine and to be supplied with air, anozzle in said chamber having inner and outer connnunicating passages to which fuel is adapted to be sup` plied, said outer passage opening at its end into said chamber, a perforated hood into which the uppel`- end of said inner passage opens, an atmospheric connection to l'said hood, a double conical valve sldable on-said hood ,and having passages therethough ada ptcd to register with the perforations n 15 said hood, an annular upwardly tapering' Cone in said mixing chamber around the upper end oi sald nozzle and a member depending.r from said valve and adapted to throttle the space 'around the upper end of said outer 20 FRIDA KLAIBER, ERNEST ENTENMANY. 

